Could you be more specific by "the car does not move"? Can you engage a gear? What happens when you press the accelerator?

It would be very difficult to make a diagnosis on such limited information, and I would only be able to pass on my knowledge regarding "ecomatic" specifics. The easiest way to establish faults with the ecomatic system would be to connect the car to a VAG Diagnostic machine and check the fault codes.

The car does not know what gear it is in (responsibility of f208)
It thinks that it is in an incorrect gear for the road speed. (responsibility of f208 and road speed sender)
It thinks that the gear is not properly engaged (responsibility of f209)

When all the lamps flash together at once, this means the ECU has detected a fault and has set a fault code in it's memory.

My first suggestion would be to get the car put on a Volkswagen diagnostics machine, you need to interrogate the clutch electronics (12) for fault codes. The fault code will tell you exactly what sensor has malfunctioned and in what way it has malfunctioned too.

I would strongly suggest putting the car on a diagnostic machine, as this will tell you right away what is wrong and point you in a very close direction.